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2.3 Absolute Maximum Ratings

Stress levels beyond those listed in Table 4 may cause permanent damage to the sensor. Exposure to

minimum/maximum rating conditions for extended time periods may affect sensor performance and reliability.

Parameter

Conditions

Min

Max

Unit

MSL level

1

Supply voltage

-0.3

5.8

V

Voltage on all pins

-0.3

VDD+0.3

V

Operating temperature

-40

85

°C

Short-term storage

temperature7

-40

85

°C

Operating relative humidity

Non-condensing

0

95

%RH

ESD HDM

JEDEC JS-001

2

kV

ESD CDM

JEDEC JS-002

500

V

Latch-up

JESD78 Class II, 125 °C

-100

100

mA

Sensor lifetime

Default operating conditions (Section 1.1)

10

years

Table 4. Absolute maximum ratings

2.4 Hardware Interface Specifications

The STCC4 comes in a metal cap LGA package with a pin assignment as described in Table 5.

Pin Symbol

Description

Pin assignment

1

SCL

I2C serial clock input

2

SDA_C

I2C serial data input/output to/from

SHT4x8

3

ADDR

I2C address configuration

ADDR = GND → 0x64

ADDR = VDD → 0x65

4

VSS

Ground

5

SDA

I2C serial data input/output

6

VDDIO

I2C communication voltage

configuration9,10

7

VDD

Supply voltage

8

SCL_C

Serial clock output to SHT4x8

Table 5. Pin assignment (transparent top view). Dashed lines are only visible from the bottom of the sensor.

7

Short term storage refers to temporary conditions, e.g., during transport.

8

The SDA_C/SCL_C pins must be soldered to a floating pad if not connected to the SHT4x.

9

The required I2C communication voltage must be applied to the VDDIO pin during sensor power-up.

10

The I2C communication voltage is set to VDD when the voltage applied on the VDDIO pin is less than 0.7 V.